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EW'AN & GLENN.

Smut Mill.

N0. 79,218. Patented Jun '23, 1868.

Quinn tastes gaunt gift,

JOHN T. EWAN AND JAMES R. GLENN, OF HILLSBO RO", ILLINOIS.

Letters Patent N0. 79,21s, dated June 23,1868.

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TO ALL WHOM IT MAY CONCERN:

Be it known that we, J 01in T. Ewan and James R. GnsNN, of .Hillsboro, in the county of (Montgomery, and in the State of Illinois, have invented certain new and useful Improvements in Combined Grain-Scourer, Polisher, Smut-Mill, and Separator; and do hereby declare'that the following is a full-,clear, and exact description thereof, reference being made to the accompanying drawings, and-to the letters of reference marked thereon.

In theannexed drawings forming part of this specification,'A represents a, wooden frame, upon which the wholemachine rests. It is so arranged that it can be turned at any angle that maybe desired, for plaoingthe belt on the driving-pulley B, which is at the bottom of the upright shaft 0. This shaft goes up through the cylinder F, air-trunk D, and drum E. g l

The grain is pouredfin't'o a hole'in the top plate G of the cylinder, on to an inside top plate H, where it is equally scattered-on all sides of the cylinder; then passing down between inside jacket and steel files I, where it is scoured; then down 'to the spring-steel wire or spring-brass wires J, where it is polishcd.

These spring-steel or spring-brass wires are placed on staves or boards, which are lined on back and front with sheet iron. The holes in the staves are bored through, a heavy wire placed across theholcs, and the wires which form the brushare'put in from the hack and across this wire which holds them from pulling out. The sheet iron on the back keeps from going back-as the grain presses on them, and the ironon front protects the stave from wear. l

After the'wheat is scoured and polished, it passes out of the cylinder on opposite sides into the suctionlegs K K,'w'here the chafi' and all other light substances are separated from the wheat, the chaff and other light trash passing up the suction-legs, until they come to the top, where they are carried across, striking the check-board L, in the cent-re of the vacuum M, then turning down, the chaff falling into the lower end of the vacuum and out, the'other light substances passing round and out through the air-trunk D and drum E, into exhaust-pipe N, where they leave the machine or mill.' When the dust is scoured and polished from the grain, it passes between the insideand outside jacket, through holes in the bottom plate, into the dust-chamber 0, where a small fan keeps it stirred, that the suction-fan P on top can lift it through the smalbspouts S, running from-the dust-chamber tothesuction legs. These'spouts enter the suction-legs about two-thirds of the way up. 7 The valves R in the air-trunk D, just below the drum E, regulate the draught on the suction-legs. The inside and scouring-jackets are inhalves, and held together with wooden ribs. The whole mill is held together with four iron rodspas'sing through top and bottom platcs,'the jacket and scouring-apparatus resting on the bottom'plate and supporting the top plate.

l The steel files I I, which are used in scouring the grain, are cut on the sameprinciple as a common file, and hardened in the same manner, to make-them-durable, giving the scourer a keen, fine scouring-surface.

We areaware that-the dev iceshercin described, taken separately, are of themselves not new; but

The arrangement, upon the frame A, in the manner described, of the suction-legs K K, chambers M M, check-boards L, air-trunk D, and its valves R R, dust-chamber O, and spoutsS S, with the cylinder F, its wire brushes J, stavs I, platesG H, fan P, and shaft C, with their various parts, all constructed-and operating substantially as andfor the purposes set forth.

' In testimony that we claim the foregoing, we have hereunto set our hands, this 26. day of April, 1868.

I JOHN T. EWAN,

JAMES R. GLENN. Witnesses:

J. W. Fmx, :G. W. Townsnnn, 

